Scale construction



March 4 1924. 1,485,893

- w. F. STIMPSON S GALE CONSTRUCTION Original Filed Jan. '7, 1918 6 Sheets-Sheet 1 March 4 1924. 1,485,893 W. F. STQMPSON SCALE CONSTRUCTION Original Filed Jan. v, 1918 6 Sheets-Sheet 2 Svwewtoz SCALE CONSTRUCTION Original Filed Jan. 7, 1918 6 Sheets-Sheet 4 March 4 1924. 1,485,893

w. F. STIMPSON SCALE CONSTRUCTION Original Filed Jan. '7, 1918 6 Sheets-Sheet 5 Swuewtoz clcmm d March 4 1924. 1,485,893

w. F. STIMPSON S GALE CONSTRUCTION Original Filed Jan. 7, 1918* 6 Sheets-Sheet 6 Elwoeutoz Patented Mar. 4, 1924.

PATENT OFFICE.

WALTER F. srnvirson, or LOUISVILLE, KENTUCKY.

SCALE CONSTRUCTION.

Application filed January 7, 1918, Serial No. 210,739.

To all whom it may concern:

Be it known that I, VALTER F. S'rurrsoN, a citizen of the United States of America, residing at Louisville, in the county of Jefferson and State of Kentucky, have invented certain new and useful Improvements in Scale Construction, of which the following is a specification, reference being had therein to the accompanying drawings.

The invention relates to scales and more particularly to the automatic type of scale embodying a capacity beam and an indi cator.

The invention resides in the novel construction of the indicator mechanism; in the novel relation of the indicator mechanism to the capacity beam; in the novel manner of operating the indicator; in the novel construction and mounting of the capacity beam; and in certain other novel features of construction and combination and arrangement of parts as will more fully hereinafter appear.

In the drawings:

Figure 1 is a front elevation, partly in section, of a scale embodying my invention;

Figure 2 is an enlarged section on the line 2-2 of Figure 1;

Figure 3 is an enlarged section on the line 33 of Figure 1;

Figure 4 is an enlarged section on the line 4% of Figure 1;

Figure 5 is an enlarged view showing the relation of the capacity beam to the index hand;

Figure 6 is an enlarged perspective view partly in section illustrating the mounting for and the construction of the capacity beam;

Figure 7 illustrates the constructionof the steelyard rod;

Figures 8. 9 tions.

Figure 11 is partial side elevation of the lower portion of the scale standard.

1 designates the platform ofthe scale, 2 a rod having its lower end connected to the usual platform levers (not shown) and having its upper end connected by a lever 3 with the steelyard rod 4;, The rod 2 is connected to pendulum weights 5 which are mounted upon bearings 6 in the lower portion of the standard 7 of the scale. The lower portion of the standard, as shown in Figure 1, is enlarged as at 8 to provide room for the movement of the pendulum weights. Mounted and 10 illustrate modifica- Renewed August 2, 1923.

upon bearings 9 at the upper end of the standard 7 is the capacity beam 10. The steelyard rod 4 has its upper end bifurcated and the bifurcations terminate in hook positions 10 which engage bearings 11 upon the capacity beam. Depending from the beam 10 and arranged within the standard 7 is an arm or extension 12, the lower end of which is positioned between spaced stops or bearings 13 and 14,; these stops acting to limit movement of the beam in the same manner as does the ordinary trig loop for a beam. The index hand 15 is mounted upon the extension 12 at 16, the motion preferably being a pivotal connection. Below the bearing 16 the index hand 15 is weighted as indicated at 17 so as to substantially balance the index hand upon opposite sides of its pivot. Pivotally mounted upon the index hand are two rollers 18 and 19, the centers of which are slightly offset the one from the other and these rollers are adapted to engage respectively bearings 20 and 21 upon a bracket 22 carried by the standard 7. The bracket 22 is stationary and therefore any swinging movement of the arm 12 will cause a movement of the index hand '15.

Thus it will be seen that when a load is placed upon the platform 1 the steelyard rod 1 will be actuated through the medium of the rod 2 and an even lever 3 to cause a movement of the capacity beam. Any movement of the capacity beam causes a movement of the arm 12. Upon movement of the arm 12 the connection 16 between thx arm and the index hand is moved but as the bearin gs 20 and 21 prevent lateral movement of the rollers 18 and 19 a movement of index hand in relation to the arm is produced. While the bearings 20 and 21 prevent lateral movement of the rollers 18 and 19 the rollers during the swinging of the index hand are free to raise or lower on the bearings to the limited extent required due to the pivot 16 traveling through an are upon the drawings, the chart 2% is mounted upon and carried by the capacity beam 10, the

chart as shown being carried by a depending flange 26 on the capacity beam. Preferably two charts 24: and 25 are employed, one an ranged upon each side of the depending flange 26. As shown, the lower part of the capacity beam is hollow and the depending flange 26 is arranged above the hollow portion of the capacity beam. Carried by the capacity beam are transparent panels 26 positioned upon opposite sides of the chart thus allowing the weight upon the platform indicated by the index to be observed upon op )osite sides of the capacity beam.

he panels 26 are held in place upon the capacity beam by frames 26 which are removably secured to the capacity beam by screws 26 (see Fig. 2).

The arm 12 is preferably formed by an integral extension of one side of the hollow capacity beam, as is shown in Figure :2. Preferably, though not necessarily, there is associated. with th capacity beam a tare beam 2?. 28 is the usual dash pot and 29 the counterpoise. The dash pot and counterpo-ise are preferably arranged within the hollow chambers 28 and 29 in a casing mounted upon the upper end. of the s" 1dard 7. 30 is an adjustable balance weight for the capacity beam. In the form of the invention shown in Figure 1, the rod 2 is connected to the pendulum weights 5 by links 31, the lower ends of which are connected to an arm 32 and the upper ends of which are connected to hearing loops 31-, which are carried by bearings 35 upon lateral extensions of arms 36 on the pendulum weights. The even lever 3 is provided with a pivot or bearing with which the upper end of the rod 2 engages. Upon opposite sides of the bearing 37 are bearings 38 and 39 respectively engaging bearing loops +10 and 41. The bearing loop 10 is engaged with a hook 42, connected to the standard 7, while the bearing loop 41 engages the hooked lower end of the steelyard rod 1:.

Mounted upon the upper end of the standard 7 is a hollow casing 4:2. This casing 42 is provided with a skirting 43 within which the upper end of the standard 7 is arranged. 44 is an annular inwardly extending flange on the skirting l3 and forming a seat for the hollow casing. The lower end of the standard 7 is arranged within the bearing portion in the upper end of the enlargement 8 for the pendulum weights. 45 are a series of vertically arranged rods which act to secure the upper portion of the casing 42 upon the flange l5 and also to secure the housing the standard 7, and the pendulum weights housing together.

In the particular construction of bracket 22 shown in Figures 1 to 3 of the erawings, arms l6 are provided which are adapted to have free sliding eng gement with apertures 47 in the standard '7. The arms l e1:-

tend laterally on one side of the bracket and a bolt or rod 48 extends laterally from the other side of the bracl-cet. The rod. 18 passes through the standard and the bracket may be adjusted later-all of the standard by means of a nut 50 having a swivel connection with the standard (see Figure The arms 46 are spaced which provides clearance for the steelyard rod 4. In order to permit of access to the bearings 9, the casing 42 is provided witl removable panels 51. The bearings 9 are preferably formed by upwardly extending arms integral with the casing 1:2. Arranged in their upper ends are bearing blocks 1- for receiving knifeedged pivots of the capacity beam.

In order to permit travel of the index hand, the steclyard rod -l; is bifurcated and the bifurcations thereof are connected by a laterally extending loop This loop further acts to give the desired rigidity to the upper ends of the bifurcations and also acts to prevent the bifurcated ends from spreading.

hen it is desired to remove the capacity beam from its bearings, it is merely neces sary to disengage the hooked upper ends of the bifurcations of the stcelyard rod from the bearings 11 and then the capacity beam and its depending arm may be readily removed from out of the standard 7. lVhen the arm of the capacity beam is withdrawn from the standard, it carries with it the index hand 15. This is permitted without disengaging connections other than those of the bearings for the capacity beam, since the rollers 18 and 19 may be readily lifted out from between the bearings 20 and 21. hen it is desired to engage the capacity beam with its bearings. it is merely necessary to insert the rm of the capacity beam within the standard and when this is done the rollers will readily be positioned between the bearings 20 and 21. To facilitate the engagement of these rollers with the bearings 20 and 21, the upper ends of such members are flared, as best shown in Figure 1. Such an arrangement of parts not only provides an easy manner of assembling and disassembling the mechanism, but also the index hand and the index chart are maintained in a fixed relation to each other even when the capacity beam is removed from its bearings. In order to retain the pivots 52 in en agen'icnt with their bearing blocks caps are employed which are removably secured by screws 71 to the members 9. However, any'suitable fulcrum for the capacity beam may be used.

In place of controlling the movement of the index hand by pendulum weights, a spring may be employed for this purpose. Such a structure is shown in Figure 8. In this figure. 56 illustrates the counterpoise connected to the capacity beam in the usual til) manner and 57 indicates a spring attached at one end to a fixed part of the scale frame as at 58 and having the opposite end attached to the conntorpoise. This arrangement of parts will be readily understood by those skilled in the art. The remaining parts of the scale are the same as previously described, with the exception that the rod 2 is not connected toithe pendulum weights, so that all of the mechanism connected to the rod 2 intermediate its ends is dispensed with.

In Figures 9 and 10 I have illustrated a different form of connection for the index hand. As shown in this figure, in place of the rollers 18 and 19 and the bearing portions 20 and 21, a link is connected to the index hand below the pivot bearin 16, the connection being a pivotal one, as il ustrated in Figure 10. The outer end of the link 60 is pivotally connected at 61 to a lug or ear 62 on a stud 63. This stud is swiveled within a threaded member 64. The threaded member 64 carries a ring 65 held in place by lock-nuts 66 and 67, and the member 65 carries point bearings 68 which engage bearing screws 69, carried by a bracket 73. 74 are lock nuts for the member 69. The bracket 73 has laterally extending ears 7 5 which are secured as by means of screws 76 to the wall of the standard 7. With this arrangement of parts, the pivotal connection 59 between the lock 60 and the index hand permits a rocking movement of the link in a vertical plane, as does also the pivotal con nection 61. The swivel stud 63 prevents binding of the pivotal connections due to any twisting strains. The pivotal mounting for the member 64 allows the stud 63 to move laterally, thus it will be seen that the connection between the index hand and the standard 7 provides for free play in all directions eliminating any binding which would result in inaccurate actuation of the index hand.

In the connections shown in Figures 9 and 10 and also the form of connection previously described between the index hand and the standard 7, movement of the arm carried by the capacity beam is multiplied, so that a slight movement of the arm on the capacity beam will produce a considerable movement of the index hand.

In the particular construction of capacity M beam shown in the drawing I Preferably provide the arm 12 with a weight 77 vertically adjustable thereon by means of a screw 78, the screw being retained in the slot 79 in the arm. This weight is employed to regulate the weight below the fulcrum 52 of the capacity beam.

By the type ofsc-ale heretofore described, the degree of movement of the capacity beam regulates the movement of the index hand and by changing the unitload' upon the capacity beam, the scale will automatically weigh from a minimum up to the maximum capacity of the beam of the scale, in the present instance 500 pounds. The capacity of tge scale may, of course, be varied as desire I find it very suitable to have the index chart positioned in proximity to the capacity beam, as this allows the reading on the capacity beam and on the index chart to be readily taken and by mounting the index chart upon the capacity beam, the chart is maintained in proper relation to the index hand.

While I have shown and described certain embodiments of the invention, I do not desire to limit theprotection to the particular constructions illustrated, as certain parts of the scale are capable of various modifications without departing from the scope of my invention.

What I claim as my invention is 1. In a scale, the combination of a laterally extending capacity beam, an index chart carried by the capacity beam, and extending longitudinally thereof, a platform mechanism for operating the capacity beam from the platform, a depending arm rigidly connected to the capacity beam, an index hand pivotally mounted upon said arm, and

means for effecting a movement of the index hand upon and independently of the movement of the capacity beam.

2. In a scale, the combination of a horizontally arranged capacity beam, an index chart carried by the capacity beam, and extending longitudinally thereof, an index hand, a vertically arranged projection from said beam upon which said index hand is mounted, and means for effecting upon a movement of said projection a movement of the index hand in a direction opposite the movement of the projection.

3. In a scale, the combination of a capacity beam, an index chart carried by the capacity beam, a vertically arranged projection extending from said beam, an index hand carried by said projection, and means for causing a movement of the index chart hand relative to the projection upon a move- I ment of the projection, said means being adapted to multiply the movement transmitted to the index hand by the projection.

4. In a scale, the combination of the frame including a hollowstandard, a platform, a l

capacity beam. mounted upon said standard exteriorly thereof. connections for operating said capacity beam upon a movement of the platform, an index chart arranged below saidfcapacity beam, an index hand arranged within the standard, and means for effecting a movement of the index hand upon a movement of the capacity beam.

In a scale, thecombination of the frame including a hollowstandard, a platform, a

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capacity beam mounted upon said standard exteriorly thereof, connections for operating said capacity beam upon movement of the platform, an index chart arranged below said capacity beam, an index hand arranged within the standard, a projection on the beam extending within the standard, and a connection between the index hand and said projection for effecting a movement of the index hand upon a movement of the capacity beam.

6. In a scale, the combination with a frame including a hollow standard, a plat form, a capacity beam mounted upon the standard exteriorly thereof, connections between the platform and the standard for effecting a movement of the capacity beam upon a movement of the platform, a. verti cally arranged projection on the capacity beam extending within the standard, an index hand mounted upon the projection, and a connection between the index hand and the standard for effecting a multiplying movement of the index hand upon a movement of the capacity beam projection.

7. In a scale, the combination with a capacity beam, an index chart mounted thereon and extending longitudinally thereof, a project-ion on the capacity beam, an index hand mounted upon the projection, and means for causing a movement of the index hand over the index upon a movement of the capacity beam.

8. In a scale, the combination with a ca pacity beam including a projection thereon, an index hand mounted upon the projection, said capacity beam having a chambered portion, an index arranged in proximity to said chambered portion, the outer end of the index hand being positioned within the chambered portion in operative relation to said index, means for operating the capacity beam, and means for effecting a movement of the index hand in relation to the index upon a movement of the capacity beam.

9. In a scale, the combination with the base, a standard thereon, a capacity beam mounted upon the standard, a platform, connections between the platform and the capacity beam for actuating the latter upon a movement of the former, said standard being hollow, a projection upon the capacity beai extending within the standard, an index hand pivotally mounted upon the extension of the capacity beam, a connection be tween the index hand and the standard for eficcting an increased movement of the index hand upon a movement of the projection of the capacity beam, and stops within the standard for limiting the degree of travel of the projection.

10. In a scale, the combination of the frame including a standard, a platform, a capacity beam mounted upon said standard, connections for operating said capacity beam upon a movement of the platforn'i including a steelyard rod having bifurcated upper portions and having a laterally extending yoke connecting the bifurcations, an index chart arranged below said capacity beam, an index rand arranged within the standard, and means for effecting a movement of the index hand upon a movement of the capacity beam, the upper end of the index hand being adapted to travel between the bifurcations of the steelyard rod.

11. In a scale, the combination of the frame including a standard, a platform, a capacity beam mounted upon said standard, connections for operating said capacity beam upon a movement of the platform, said connections including a steel yard rod, an index chart arranged below said capacity beam, an index hand arranged within the standard, a projection on the beam extending within the standard, a connection between the index hand and said projection for effecting a movement of the index hand upon the movement of the capacity beam, said steelyard rod being bifurcated and the index hand being adapted to travel between said bifurcations, the upper end of the bifurcations being connected by a laterally extending loop for the purpose described.

12. In a scale, the combination with a capacity beam, a platform, connections between the capacity beam and the platform including a steelyard rod, an index chart, an index hand adapted to be operated upon the movement of the capacity beam, said steelyard rod being bifurcated and the index hand being adapted to travel between said bifurcations, the upper end of said bifurcations being connected by a laterally extending U-shaped portion for the purpose described.

18. In a scale, the combination with a capacity beam, an index chart mounted thereon and extending longitudinally thereof, a projection on the capacity beam, an index hand and means for causing a movement of the index hand over the index upon movement of the capacity beam.

14. In a scale, the combination with a capacity beam, an index chart mounted thereon and extending longitudinally there of, an index hand positioned in operative relation to said index chart and means for causing a movement of the index hand over the index upon a movement of the 'apacity beam.

15. In a scale, the combination with a platform, a capacity beam, connections for actuating the capacity beam from the platform, a hollow standard upon which the capacity beam is exteriorly fulcrinned, an index chart on the capacity beam, an index hand fulcrumed within said standard and positioned in operative relation to said chart and means for causing a movement of the index hand over the index upon the move ment of the capacity beam.

16. In a scale, the combination with a platform, a capacity beam, a hollow standard upon which said capacity beam is ex teriorly carried, connections for actuating the capacity beam passing through said standard, an index chart positionedin proximity to the capacity beam, an index hand for said chart mounted within said standard and means for actuating the index hand from and upon the lIlOVGiliPlit of the capacity beam.

17. In a scale, the combination of a platform, a capacity beam, connections for operating the capacity beam from the platform, an index hand, connections for operating the index hand upon a movement of the capacity beam, said capacity beam having a chambered portion Within which the index hand is arranged and a chart for said index hand carried by the capacity beam.

18. In a scale, the combination of a platform, a capacity beam, connections for operating the capacity beam from the platform, an index hand, connections for operating the index hand upon a movement of the capacity beam, said capacity beam having a chambered portion within which the index hand is arranged, and a transparent panel carried by the capacity beam and a chart for said index hand arranged within said panel.

19. In a scale, the combination of a platform, a capacity beam, connections for operating the capacity beam from the platform, an index hand, connections for operating the index hand upon a movement of the capacity beam,- said capacity beam having a chambered portion within which the index hand is arranged, and a transparent panel carried by the capacity beam, and a chart for said index hand arranged within said panel, said panel being positioned above the chambered portion of the beam and upon opposite sides thereof.

20. In a scale, the combination of a platform, a capacity beam, connections for operating the capacity beam from the platform, an index hand, connections for operating the index hand upon a movement of the capacity beam, said capacity beam having a chambered portion Within which the index hand is arranged, and a transparent panel carried by the capacity beam and a chart for said index hand arranged within said panel.

21. In a scale, the combination of a platform, a standard, a chambered housing mounted upon said standard, a capacity beam fulcrumed within said housing, connections for operating the capacity beam upon an operation of the platform, an index chart carried by said capacity beam, an index hand mounted within said standard and extending through said chambered housing and having its upper end positioned in 0perative relation to said chart.

22. In a scale, the combination with a platform, a standard, a chambered housing mounted upon the upper end of the standard, a capacity beam, bearings for the capacity beam arranged Within said chambered portion and upon which the capacity beam is fulcrumed, and removable panels for said -crhambered portion permitting access to said bearings, an index chart arranged adjacent the chambered portion, and an in-- dex hand mounted within said standard and having its upper end extending within said chambered portion and into operative rela tion to said index chart.

23. In a scale, the combination of a capacity beam, a platform, mechanism for op erating the capacity beam from the platform, an arm rigidly connected to the capacity beam, an index hand pivoted upon said arm, a standard within which said arm projects, connection between the standard and the index hand for producing a movement of the index hand upon a movement of the arm, and means for adjusting such connection.

In a scale, the combination of a capacity beam, a platform, mechanism for operating the capacity beam from the platform, an arm rigidly connected to the capacity beam, an index hand pivoted upon said arm, a standard within which said arm projects, a bracket carried by the standard having spaced bearing portions and rollers upon said index hand and positioned within said bearing portions.

In a scale, the combination of a capacity beam, a platform, mechanism for operating the capacity beam from the platform, an arm rigidly connected to the capacity beam, an index hand pivoted upon said arm, a standard within which said arm projects, a bracket carried by the standard having spaced bearing portions and rollers upon said index hand and positioned Within said bearing portions, said rollers having their centers olf-set laterally.

26. In a scale, the combination with a base, a standard carried by the base, a platform mounted upon the base, a capacity beam fnlcrumed at the upper end of said standard, a steelyard rod extending within said standard, an even lever arranged within said standard and having one end connected to said steelyard rod and the other end connected to the standard, and a rod extending from said even lever for connection with the platform levers, an arm rigid with said capacity beam arranged within the standard, an index hand pivotally mounted upon said arm, connections between the index hand and the standard for producing, upon a movement of the arm, a movement of the index hand and a chart for said index hand mounted upon the capacity beam.

21". In a scale, the combination with a base, a standard mounted thereon, a charm bered casing arranged upon the upper end of the standard, a apacity beam fulcrumed within said casing, an index chart carried by the capacity beam and positioned above said tulcr .m, connection between e capacity acam and the pl rm inc mg a steelyard rod arranged within said standard, an arm carried by the capacity beam extending within said standard, an index pivotally mounted upon sait arm, connections between said index and the standard for producinga lnOVGlDQIlt of the index upon a movement of the hand, the upper end of said index extending through said chambered casing into opera tive relation to said chart and the steelyard rod having a bifurcated upper portion between which the index hand is adapted to tavel.

28. In a scale, the combination of a platform, a capacity connections for operating the capacity beam from the plat form. an index hand, connections for operating the index hand upon a movement of the capacity beam, said capacity beam having a chambered portion within which the index hand is arranged, and transparent panels carried by the capacity beam positioned above the chambered portion of the beam and upon opposite sides thereof, and a chart for the index hand arranged within said transparent panels. 7

29. In a scale, the combination of a platform, a capacity beam, connections for operating the capacity beam from the platform, an index hand. connections for operating the index hand upon a movement of the capacity beam, said capacity beam having a chambered portion within which the index hand is arranged and a transparent panel carried by the capacity beam, said capacity beam having a flange, index charts upon opposite sides of said flange and transparent panclc upon opposite sides or" the capacity beam for said ch? ts.

80. In a scale, the combination of a platform, a capacity beam, connections for op erating the capacity beam from the platform. an index hand, connections tor operating the index hand upon a movement of the capacity beam, said capaciy beam havin a chambered ortion within which the index hand is arranged and a transparent )anel carried by the capacity beam, said capacity beaii having a flange, index charts upon opposite sides of said flange and transparentpanels upon opposite b am for said charts, and removable frames upon opposite sides or" the capacity beam for said transparent panels.

31. In a scale, the combination of a platsides of the ca form, a capacity beam, connections for operating the capacity beam from the platform, an index hand, connections for operating the index hand upon a movement of the capac ity beam, said capacity beam having a chambered portion within which the index hand is arranged and a transparent panel mounted upon and carried by the capacity beam, a chart for said index hand located in operative relation to said panel and removable frame for the transparent panel.

in a scale, the combination or" :1 laterally extending capacity beam, a projection thereon, an index, platform mechanism for operating; the capacity beam from the plat form, an index hand pivotally mounted upon said projection, means for eti'ecting a movement of the index hand upon movement ot the capacity beam and stops upon said standard cooperating with the projection of the capacity beam for limiting the name ment thereof.

In a scale, the combination ofa frame including a standard, a platform, a capacity beam mounted upon said standard, connections for operating said capacity beam upon a movement of the platform, including a stcelyard rod having a bifurcated upper portion, anindex chart positioned in 0perative relation to said capacity beam, an inhaving its outer end positioned in elation to said index chart and to travel between the bifurcations said steelyard rod and means for ofrceting a movement of the index hand upon a movement of the capacity beam.

34. In scale, the combination of a platform, a capacity beam, connections for operating the capacity beam from the platform, an index hand, connections for operating the index hand upon a movement of the capacity beam, there being a chambered portion in the capacity beam within which a portion of the index hand is arranged and a chart for the index hand positioned in operative relation thereto.

35. In a scale, the combination of a plat form, capacity beam, connections for operating the capacity beam from the platform, said apacity beam being chambered, :t'ulcrums for the capacity beam upon opposite sides of the chambered port-ion, an index hand having a'portion arranged within said chamber and adapted to travel upon opposite sides oi the line of said fulcrums, a chart for said index hand, and connections for operating the index hand upon a movement of the platform.

36. In a scale, the combination of a base, standard mounted thereon, a capacity beam carried by said standard, an arm upon said capacity beam projecting within the standard, an index chart, an index hand arranged within the standard, and connections for operating said index hand upon a movement of said arm, said capacity 38. In a scale, the combination of a. base,

beam, index, arm and index hand being a standard mounted thereon, a chambered mounted to be disengaged as a unit from said standard.

37. In a scale, the combination of a base, a standard mounted thereon, a capacity beam carried by said standard, an index chart mounted upon said capacity beam, an arm attached to said capacity beam projecting Within the standard, an index hand fulcrumed upon said arm, and connections for operating said index hand upon an operation of said capacity beam, said capacity beam, index, index hand and arm being adapted to be removed as a unit from said standard.

housing arranged at the upper end of said standard, a common means for securing the housing to the standard and the standard to the base, a capacity beam carried by said housing, connections Within the standard for operating the capacity beam upon a movement of the platform, an index, an index hand arranged Within the standard, and connections between said capacity beam and the index hand for operating the latter upon a movement of the former.

In testimony whereof I affix my signature.

VALTER F. STIMPSON. 

